Filter



(No Mod'el.) A. L. 8v L. J. BARTHELEMY.

l FILTER.

UNTTED STATES PATENT OEEICE.

ARISTIDE L. BARTHELEMY AND LOUIS J. BARTHELEMY, OF NEW ORLEANS,LOUISIANA.

FILTER.

SPECIFICATION forming part of Letters Patent No. 586,474, dated July 13,1897.

Application filed September 2, 1896. Serial No. 604,645. (No model.)

To all whom. t may concern.:

Be it known that we, ARIsTIDE L. BAR- THELEMY and Louis J. BARTHELEMY,citizens of the United States, residing at New Orleans,

in the parish of Orleans and State of Louisiana, have invented certainnew and useful Improvements in Filters; and we do hereby declare thatthe following is a full, clear, and exact description of the same,reference be- 1o ing had to the annexed drawings, making a part of thisspecification, and to the figures of reference marked thereon.

This invention relates to filters, and more especially to that class offilters designed for the ltration of saccharine juices and syrups, andhas for its object to improve and simplify the construction and promotethe etticiency of the tilter shown and described in Letters Patent No.563,639, issued to us on the 7th 2o day of July, A. D. 1896.

To these ends our invention consists in the features and in theconstruction, arrangement, or combination of parts hereinafter'described, and pointed out in the claims following the description,reference being had to the accompanying drawings, forming a part of thisspecification, wherein- Figure 1 is a vertical central section of ourimproved filter, and Fig. 2 is a similar View 3o taken at right anglesto Fig. 1.

Referring to the drawings, the filter-casing is shown as consisting of alower section 1 and an upper section 2, suitably secured together. Thelower section is provided with a funnel-shaped bottom 3, provided at itscentral or lowest portion with an outlet 4, adapted to be closed by anysuitable means. The upper section 2 is open at its vupper end and isprovided on its opposite interior sides with 4o inwardly-projectingflanges 5, on which are adapted to rest the ends of transversepartitions 6, that are arranged parallel to each other and at suitabledistances apart. A metallic cover 7 has attached thereto or formedtherewith arms S, provided with downwardlydepending lugs 9, that arehinged to corresponding lugs 10, formed on one side of the section 2.The arms 8 are extended to one side of the filter-casin g and at theirfree ends 5o are provided with weights 11, that serve to counterbalancethe weight ot' the cover and render easy the operation f openin g andclosing the same. Ihe cover 7 is provided with ribs 12 and 13, thatextend longitudinally and transversely across the top of the cover andare bifurcated at their ends. Swing-bolts 14 are pivotally connected tolugs 15, formed on the sides of the upper section 2 and rest between thebifurcated ends of the ribs 12 and 13. The upper ends of the swing-boltsare 6o threaded and have tapped thereover handnuts 16, by means of whichthe cover may be tightly fastened down in place. A gasket 16, ofyielding material, is arranged upon the under side ot the cover 7 andserves to eect a 6 5 tight joint between the cover and the upper edgesof the section 2 and the partitions 6.

Suspended from the partitions 6 are filterbags 17, preferably formed oftextile material, rectangular in crosssection and closed 7o upon allsides excepting the top. Each tilterbag extends nearly the entire widthot the filter-casing, as more clearly shown in Fig. 1, and one ot suchbags is arranged between every two adjacent partitions 6, the upperedges of the bags being folded over the upper y edges of the partitionsand of the upper section 2, the said edges of one bag lapping the edgesof the two adjacent bags, and the bags are clamped and tightly held inposition by 8o the cover 7 when the latter is closed and fastened down.Arranged in each bag is a rectangular screen 18, preferably formed of`reticulated Wirework, which serves to keep the filter-bag distended inproper shape, yet at the same time permits the free and uninterruptedpassage therethrough of the saccharine juices or syrup.

The bottoms of the iilter-bags and their screens rest upon longitudinalrods19,which 9o are supported on the upper edges of the funnel-shapedbottom of the lower section 1, by which means the filter-bags areprevented from being stretched or torn.

Fitted in suitable apertures formed in the cover 7 and its gasket 16nare nipples 19, one for each iilter-bag, said nipples at their lowerends communicating with the upper ends of the filter-bags and at theirupper ends are connected to a manifold 20, the latter in turn roo beingconnected to a suitable source of water-supply. Perforated pipes 21 arearranged at their other ends project over the edge of the lter-casingand overhang a trough 24,

supported on one side of the filter-casing.v

Around the upper edge of the section 2 is formed anoverflow-trough25,that catches any unfiltered juices that may escapebetween the top of the filter-casing andits cover.

An inlet 26 for the saccharine j uices' or syrup is t-apped through thesection l, and said section is also provided with a manhole 27 to affordaccess to the interior of the filtercasing.

The operation of our improved filter is as follows: The unfilteredsaccharine juice is introduced into the filter-casing through the inlet26 and lls the entire interior of the iilter-casing. The juice iiltratesthrough the sid es of the filter-bags into the interior thereof, wherebytheimpu'rities are separated from the purev saccharine 'j nice,` and thelatter rises in the iilter-bags and escapes through the outle t-pipes 23and by the latter is discharged into the receiving-trough 24. In thecourse of time the deposit of impurities of the iilter bags tends toclog the latter and impede and render imperfect the operation of thesame. Then this occurs, the saccharine juice is drawn o't'f through theoutlet 4 and water is admitted to the manifold 2O and is discharged intothe lterbags through the nipples 19. Steam or water is also admitted tothe manifold 22 and is discharged in numerous small jets upon theexterior of the filter bags through the perforated pipes 2l. The steamor water operates to soften and loosen the impurities deposited on theexterior and in the interstices of the filter-bags, and the water washesthe impurities out and away from the bags and from the interior of thefiltere casing and finally discharges through the outlet 4. In thisoperation it is entirely un necessary to disconnect or disturb any ofthe parts of the filter.

By making the bags rectangular in crosssection and by arranging themside by side and extending them approximately across the entire width ofthe filter-casing a very large filtering-surface is provided, and bymeans of the washing apparatus described all the impurities arethoroughly and rapidly loosened and carried off.

Having described our invention, what we claim is- 1. In a filter, thecombination with a closed casing, of a series of parallel partitionsarranged in the upper portion of said casing,

iilter-bags, rectangular in cross-section, suspended from saidpartitions, one of said bags being arranged between every two adjacentpartitions, the upper edges of the bags being folded over the Lipperedges of the partitions,

a cover arranged on the top of the lter-casing and resting on the foldededges of the filter-bags, discharge-pipes for discharging the contentsof the bags, means for clamping the cover in place to bind the foldededges of the bags between the cover and the said partitions, flat,rectangular screens arranged within the filter-bags, and longitudinalrods supported in the bottom of the casing at right angles to thefilter-bags, and 'forming supports for the bottoms of the bags andscreens, substantially as described.

2. In a filter, the combination with a closed casing, of a series ofparallel partitions arranged in the upper portion of said casing,filter-bags suspended from said partitions, one of said bags beingarranged between every two adjacent partitions, a cover resting on thetop of the filter-casing and said partitions, a water-supplyingmanifold, and a plurality of nipples, one for each iilterebag, connectedat their upper ends to said manifold and coinmunicating at their lowerends with the open ends of the filter-beds, substantially as describedand for the purpose specified.

3. In a filter, the combination with a closed casing, of a series ofparallel partitions arranged in the upper portion of said casing,filter-bags suspended from said partitions, one of said bags beingarranged between every two adjacent partitions, a cover resting on thetop of the filter-casingand said partitions,

a water-supplying manifold, a plurality ofnipples, one for eachfilter-bag, connected at their upper ends to said manifold andcommunicating at their lower ends with the open ends of the lter-bags, afluid-supplying manifold, a plurality of perforated pipes arrangedlongitudinally between the upper portion of the filter-bags andconnected at their outer ends with said huid-supplying manifold and anoutlet arranged in the bottom of the filtercasing, substantially asdescribed.

4. In a Iilter, the combination with a closed casing of a series ofparallel partitions` arranged in the upper portion of said casing,filter-bags rectangular in cross-section' suspended from saidpartitions, one of said bags being arranged between every two adjacentpartitions with their upper edges folded over the upper edges of thepartitions, a gasket disposed on the upper edge of the casing andresting on the folded edges of the filter-bags,

.the discharge-pipes, one for each bag, carried by said cover fordischarging the contents of the bags, and means for clamping the gasketand cover in place to securely hold the folded edges of the bags,substantially as described. In testimony whereof we have hereuntosubscribed our names in the presence of two witnesses.

ARISTIDE L. BARTHELEMY. LOUIS J. BARTHELEMY. Vitnesses:

M. J. LEHMAN, H. L. WICK.

IIC

